CVE-2021-35395 : What You Need to Know
Discover the impact of CVE-2021-35395, affecting Realtek Jungle SDK versions v2.x up to v3.4.14B. Learn about stack buffer overflows and arbitrary code execution exploits that could lead to remote code execution on vulnerable devices.
Realtek Jungle SDK versions v2.x up to v3.4.14B are affected by multiple vulnerabilities, including stack buffer overflows and arbitrary code execution exploits. Successful attacks could lead to remote code execution on the device.
Understanding CVE-2021-35395
This CVE pertains to vulnerabilities found in the Realtek Jungle SDK web server, impacting binary versions based on this SDK.
What is CVE-2021-35395?
The Realtek Jungle SDK web server versions v2.x up to v3.4.14B contain vulnerabilities that could be exploited for arbitrary code execution by remote attackers.
The Impact of CVE-2021-35395
The identified vulnerabilities in the Realtek Jungle SDK could allow attackers to gain remote access and execute arbitrary code on affected devices.
Technical Details of CVE-2021-35395
The vulnerabilities in Realtek Jungle SDK include stack buffer overflows in various management interface binaries and can result in arbitrary command execution.
Vulnerability Description
The vulnerabilities include unsafe copying of parameters in multiple forms, leading to stack buffer overflows in different functions.
Affected Systems and Versions
All Realtek Jungle SDK versions v2.x up to v3.4.14B featuring the HTTP web server for device configuration are affected by these vulnerabilities.
Exploitation Mechanism
Successful exploitation depends on the implementation of the SDK web server by different vendors, with varying levels of customization and security practices.
Mitigation and Prevention
To address CVE-2021-35395, users must take immediate steps and establish long-term security measures to prevent unauthorized access.
Immediate Steps to Take
Users should apply patches provided by Realtek or device manufacturers to fix the identified vulnerabilities in the SDK web server.
Long-Term Security Practices
Developers are advised to implement secure coding practices and conduct regular security audits to detect and mitigate vulnerabilities in custom code.
Patching and Updates
Regularly update devices with the latest firmware and security patches to ensure protection against known vulnerabilities in the Realtek Jungle SDK.